# Sean Wade — Research scientist & engineer

> Professional background, research, software projects, and engineering writing from seanwade.com.

Sean Wade is a Senior Research Data Scientist at Google, previously a Senior Machine Learning Engineer / Data Scientist at Apple, and the founder and engineer behind PulsHealth. His work spans generative AI, LLM evaluation, recommender systems, and health technology.

This file summarizes the public website. Follow the linked pages for details and updates. Public contact: hello@seanwade.com.

## Professional background

- [Home](https://seanwade.com/): Professional overview and full experience summary.
- [Resume](https://seanwade.com/resume/): Experience, research, publications, internships, and skills.
- [Resume PDF](https://seanwade.com/assets/sean_wade_resume_2025_updated.pdf): Downloadable resume.

Google — Senior Research Data Scientist, July 2025–present: Python infrastructure for LLM quality evaluation and parallel prompt DAGs; meta prompts, agentic workflows, and AI rater validation; Google Discover recommender metrics; experiment design and analysis.

Apple — Senior Machine Learning Engineer / Data Scientist, December 2019–July 2025: On-device ML for food image classification and nutrition feedback, personalized workout recommendations, walk detection, and contextual notifications. Work also covered model safety, robustness and privacy; data collection for LumiHealth, Heartline and Attain; health-data labeling; medical claims and sensor pipelines; and research on digital health interventions.

Microsoft — AI Platform Engineer Intern, June–September 2019: ML deployment, evaluation, and retraining tools on Azure, including MLflow support in the Azure SDK.

Disney — Machine Learning Resident, January–May 2018: Ride and attraction recommendations for the Disney World Park app, with real-time monitoring pipelines and dashboards.

Loveland Innovations — Computer Vision Engineer, March 2017–August 2018: Drone imaging and photogrammetry for building models, and convolutional neural networks for roof damage classification.

Education and research at Brigham Young University: MS in Computer Science and BS in Applied Mathematics; conditional adversarial networks for synthetic cancer cell imagery and vector embeddings for medical claims histories.

Skills listed on the site include Python, Swift, SQL, C++, LLM post-training and RLHF, LLM evaluation, prompt engineering, agentic workflows, PyTorch, JAX, Spark, Hadoop, OpenCV, PCL, privacy-preserving ML, numerical methods, and mathematical modeling.

## Research and publications

- [Code2Vec: Embedding and Clustering Medical Diagnosis Data](https://ieeexplore.ieee.org/document/8031179): Medical diagnosis embeddings and clustering.
- [Forward Thinking: Building and Training Neural Networks One Layer at a Time](https://arxiv.org/abs/1706.02480): Layer-by-layer neural network training.
- [MediAug](https://github.com/smwade/MediAug): Toolkit for semi-supervised synthetic cancer cell image generation and medical image augmentation.

## Products and projects

- [Project library](https://seanwade.com/projects/): Apps, research, experiments, tools, and writing.
- [PulsHealth](https://seanwade.com/pulshealth/): Independently designed and built open-source Apple Health platform. Includes a Swift app, sync protocol, PostgreSQL backend, web dashboard, and AI integrations. Explore and export CSV or JSON, sync to hosted or self-hosted storage, and connect compatible assistants through read-only MCP access. The site reports a milestone of over 1,000 users.
- [PulsHealth source](https://github.com/PulsHealth/pulshealth): Open-source app and server.
- [Watch Workout Pro](https://pulshealth.com/watch-workout-pro/): Create custom workout plans to use on Apple Watch.
- [Friend Flex](https://pulshealth.com/friend-flex/): Social fitness challenges.
- [Health data experiments](https://pulshealth.com/examples/): Visualizations and creative health-data projects.
- [Living Window](https://seanwade.com/projects/living-window/): Programmable window with animated scenes and a camera-tracking eye.

## Tools and writing

- [Tools](https://seanwade.com/tools/): Standalone interactive calculators.
- [Investment calculator](https://seanwade.com/tools/investment-calculator/): Model compound growth, contributions, and inflation.
- [Domains vs. stocks](https://seanwade.com/tools/domain-investing/): Compare domain investing returns, commissions, renewal costs, and break-even points against stocks.
- [Blog](https://seanwade.com/blog/): Engineering articles.
- [Git worktrees + Claude Code](https://seanwade.com/blog/git-worktrees-claude-code/): Running parallel coding agents with Git worktrees.